APA Edition Citation

Ecker, H. P. a. (1970). Handbook for supervisors (2nd ed.). Prentice Hall.

Chicago Edition Citation

Ecker, H Paul...[et al.]. Handbook for Supervisors. 2nd ed. New Jersey: Prentice Hall, 1970.

MLA Edition Citation

Ecker, H Paul...[et al.]. Handbook for Supervisors. 2nd ed. Prentice Hall, 1970.